#include <iostream>
using namespace std;

class A
{
	public:
		//默认构造函数
		A(int x,int y){i = x;j = y;}
		void func(int x,int y){i = x;j = y;}
		//const 声明成员函数
		void print() const {cout<<"i*j = "<< i*j<<endl;}
	private:
		int i ,j;
};


int main(int argc, char *argv[]) {
	A a = A(4,5) ;
	//a.func(4, 6);
	a.print();
}